Q.Mango young plant wilting
I have three mangoes grown from seed in 12 inches pots that are currently 3 months old. The leaves normally spread to the sides and separated from the stem, but suddenly the leaves wilted and now hang closer to the stem. The leaves look a healthy green and the plant continues to push new growth. Is the plant diseased or needing nutrients?

Certified GKH Gardening Expert
There is nothing wrong with it, other than needing a little water. They will naturally do this in response to heat, or dry weather to preserve moisture and cut respiration rate.
This article will give you more information on the care of these in container: https://www.gardeningknowhow.com/edible/fruits/mango/mango-trees-in-pots.htm